... pipe ,oil & gas pipe line Brand Tiger steelStandard ASTM A53,BS1387-1985,DIN2440,GB/T3091-2008,EN39,BS1139Material Carbon ... steel :ASTM A 53/A106 GR,B ,X42.X52. Q195,Q235 ... , weldedO.D. 1/2-24 inchW.T. 3.0-40 mmLength 5.8m,6.0m,11.5m,11.8m ... Africa, etc.Contact Person Amanda Cui 15563512134 API 5L ASTM A 53/A106 Gr.B seamless steel tube,line pipe ...